There are 2 titles associated with this firm.

@book{ wphp_15924
  author={Hayley,William and Seward,Anna},
  year={1798},
  title={Amelia; or, The faithless Briton. An original American novel, founded upon recent facts. To which is added, Amelia, or Malevolence defeated; and, Miss Seward's Monody on Major Andre.},
  publisher={William Spotswood \& C.P. Wayne \& },
  address={Boston},    }
@book{ wphp_15924
  author={Hayley,William and Seward,Anna},
  year={1798},
  title={Amelia; or, The faithless Briton. An original American novel, founded upon recent facts. To which is added, Amelia, or Malevolence defeated; and, Miss Seward's Monody on Major Andre.},
  publisher={William Spotswood \& C.P. Wayne \& },
  address={Boston},    }